How to select objects based on texture data?
In the outliner editor window, at the right hand side of the menu bar, where the default item in the selection window is "all scenes", activate the drop down menu by pressing the arrows at the right side of the button, and select the menu item "data blocks". In the data blocks list, find "textures", and click on the plus-sign-in-a-circle to the left of the entry, and click on that to expand it. This will show all textures in the scene, and allow you to select them, or if not, to at least determine which objects in the scene are using the texture.